Abstract
The author examined the riboflavin content of cardiac muscle and vascular wall in the 3 types of experimental arteriosclerosis (vitamin D, adrenalin and cholesterol type) by rabbits. In all arteriosclerotic cases, the total riboflavin content of aortic wall was proved to be decreased owing to the marked decrease of FAD in the majority of these cases. Only in the adrenalin type, however, FMN also decreased accompanied by the marked increase of free riboflavin. As for cardiac muscle, in the adrenalin type, the total riboflavin content revealed somewhat lower with increasing of free riboflavin, but in cases of the vitamin D- and cholesterol type, no considerable difference was perceived. In the vena cava, the total riboflavin content decreased only in the vitamin D type, FAD disappeared and free riboflavin increased eminently in the adrenalin type with no other particular findings.
